.demo{background: #d57d7d;padding: 1.5em 0;font-family: 'Microsoft YaHei','Lantinghei SC','Open Sans',Arial,'Hiragino Sans GB','STHeiti','WenQuanYi Micro Hei','SimSun',sans-serif;height: 100vh;}
a:hover,a:focus{outline: none;text-decoration: none;}
.tab .nav-tabs{position: relative;border-bottom: 0 none;}
.tab .nav-tabs li{text-align: center;}
.tab .nav-tabs li a{display: block;height: 70px;line-height: 65px;background: linear-gradient(165deg, transparent 29%, #908a78 30%);font-size: 15px;font-weight: 600;color: #fff;text-transform: uppercase;margin-right: 0;border-radius: 0;border: none;position: relative;transition: all 0.5s ease 0s;}
.tab .nav-tabs li.active a,.tab .nav-tabs li a:hover{background: linear-gradient(165deg, transparent 29%, #efe8d5 30%);border: none;color: #908a78;}
.tab .nav-tabs li a:before{content: "";height: 70px;line-height: 90px;border-bottom: 70px solid rgba(0, 0, 0, 0.1);border-right: 10px solid transparent;position: absolute;top: 0;left: 100%;z-index: 1;}
.tab .nav-tabs li:last-child a:before{border: none;}
.tab .tab-content{font-size: 14px;color: #6f6c6c;line-height: 26px;background: #efe8d5;padding: 20px;height:90vh;}
.tab .tab-content h3{font-size: 24px;color: #6f6c6c;margin-top: 0;}
/*.tab .tab-content p{margin-bottom: 0;text-align: justify;text-indent: 2em;}*/
@media only screen and (max-width: 480px){
	.tab .nav-tabs li{width: 50%;margin-bottom: 8px;}
	.tab .nav-tabs li:last-child{margin-bottom: 0;}
	.tab .nav-tabs li a:before{border: none;}
	.tab .nav-tabs li a{font-size: 0.8em;}
}
body{background: #d57d7d!important;}
.input_control{
  width:70vw;
  margin:10px auto;
}
input[type="text"],#btn1,#btn2{
  box-sizing: border-box;
  text-align:center;
  font-size:1.4em;
  height:2.4em;
  border-radius:4px;
  border:1px solid #c8cccf;
  color:#6a6f77;
  -web-kit-appearance:none;
  -moz-appearance: none;
  display:block;
  outline:0;
  padding:0 1em;
  text-decoration:none;
  width:100%;
}
input[type="text"]:focus{
  border:1px solid #ff7496;
}

::-moz-placeholder { /* Mozilla Firefox 4 to 18 */
  color: #6a6f77;
}
::-moz-placeholder { /* Mozilla Firefox 19+ */
  color: #6a6f77;
}
input::-webkit-input-placeholder{
  color: #6a6f77;
}
.mtop{
	margin-top: 26vh;
}
.logo_img{width: 32vw;
    margin-left: 25vw;
    margin-top: -25vh;}

.yuyue{
	float: left;
	font-size:1.4em;
    margin-top: 1.5vh;
}

.subtraction{
	    float: left;
    height: 4.2vh;
    width: 8vw;
    margin-top: 1.5vh;
    font-size: 30px;
	border: 1px solid #c8cccf;
	background-color: white;
	border-radius: 4px;
}

.subtraction_d{
	    float: left;
    height: 4.2vh;
    width: 8vw;
    margin-top: 1.5vh;
    font-size: 30px;
}

.add{
	    float: left;
    height: 4.2vh;
    width: 8vw;
    margin-top: 1.5vh;
    font-size: 30px;
	margin-left:2vw;
	display:none;
	border: 1px solid #c8cccf;
	background-color: white;
	border-radius: 4px;
}

.number{
	float: left;
	width: 18vw!important;
	margin-left: 2vw;
}

.number_d{
	float: left;
	width: 18vw!important;
	margin-left: 2vw;
}

.lim_float_icon_pc {
    position: fixed;
    width: 11%;
    top: 50%;
    right: 0px;
    margin-top: -134px;
    z-index: 8;
    background: #fff;
    text-align: center;
    border: 1px solid #dcdcdc;
    padding: 15px 15px 8px 0px;
	writing-mode: tb-rl;
	border-radius: 4px;
	margin-right:5px;
}

.form_list .item {

    height: 30px;
    line-height: 30px;
    margin-bottom: 16px;
    position: relative;

}

.mb_0 {
    margin-bottom: 0px !important;
}

.pt_10 {
    padding-top: 10px;
	float:left;
}

.clearfix {
    display: block;
}

.txt_check {
    float: left;
    *margin-top: -4px;
}

.txt_check_label {
    float: left;
    line-height: normal;
    margin-left: 6px;
}

.gray {
    color: #666 !important;
}


.lim_float_icon_pc .lim1 {
    cursor: pointer;
}

.mg{margin-top:-3vh;}

.hide{display:none;}

.bold{font-weight: bold;}

.valid{        
    margin-top: 12vh;
    margin-left: 7vw;
}

.fl{float: left;}

.validinput{width: 42vw!important;}

.validimg{float: left;margin-left: 2vw;margin-top: 5px;width: 70px;height: 30px;}

#a_form{margin-top: 23vh;background-color: lightcoral;pointer-events:none;}
#d_form{margin-top: 23vh;background-color: lightcoral;}

#text2{border-style: none;
margin-left: -2.5vw;
background-color:
transparent;
color:black;}

#text{pointer-events:none;}
#validimg{pointer-events:none;}